I agree with you.
But in non-Anglophone cultures,
#deathtoamerica is the same as saying #FuckAmerica.
If someone says 'Fuck....(fill in the blank), it doesn't mean that person wants to have sex with '...(fill in the blank).
'DeathToAmerica' does not mean the speaker wants Amerikkkan lives lost; they don't want to kill the country.
Very often, slang or colloquial words or phrases in one language & culture sounds horrid when translated or used in the language and culture other than the original.
✡️ 🇵🇸 